What is CVE-2026-84508?

CVE-2026-84508 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Improper Access Control. CVSS score: 5.5/10. Published 2026-10-20.

How severe is CVE-2026-84508?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Apple iOS And Ipados

CVE-2026-84508

This issue was addressed with improved validation of the caller's access. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Tahoe 26.7, visionOS 27. An app may be able to access protected user data.

Published 2026-10-20 · last modified 2026-10-20.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Apple iOS And Ipados
Apple macOS
Apple Visionos

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

support.apple.com/en-us/149034
support.apple.com/en-us/149035
support.apple.com/en-us/149038
support.apple.com/en-us/149042

Frequently asked questions

What is CVE-2026-84508?: CVE-2026-84508 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Improper Access Control. CVSS score: 5.5/10. Published 2026-10-20.
How severe is CVE-2026-84508?: Medium severity. CVSS v3 base score is 5.5 out of 10.